Dell XPS/Dimension XPS Gen 3 - Manual (Page 39)

connector size 36 pins
connector data width (maximum) 1 PCI Express lane
PCI Express
connectors one x16
connector size 164 pins
connector data width (maximum) 16 PCI Express lanes
Drives
Externally accessible:
two 3.5-inch drive bays
two 5.25-inch drive bays
Available devices Serial ATA drive, floppy drive, USB memory devices,
CD drive, CD-RW drive, DVD drive, DVD-RW drive, and
DVD and CD-RW combo drive
Internally accessible:
two bays for 1-inch high hard drives
Connectors
External connectors:
Serial 9-pin connector; 16550C-compatible
Parallel 25-hole connector (bidirectional)
IEEE 1394 front-panel 6-pin serial connector
Video 15-hole connector
Network adapter RJ45 connector
PS/2 (keyboard and mouse) two 6-pin mini-DIN
USB two front-panel and six back-panel USB 2.0–
compliant connectors
Audio five connectors for line-in, line-out, microphone,
surround, and center/Low Frequency Effects (LFE)
channel; two front-panel connectors for headphones
and microphones
System board connectors:
Primary IDE drive 40-pin connector on PCI local bus
Serial ATA four 7-pin connectors
Floppy drive 34-pin connector
Fan 5-pin connector
PCI 2.3 four 120-pin connectors
PCI Express x1 36-pin connector
PCI Express x16 164-pin connector
Telephony (TAPI) 4-pin connector
Controls and Lights
Power control push button
Power light green light — Blinking green in sleep state; solid
green for power-on state
amber light — Blinking amber indicates a problem
with an installed device; solid amber indicates an
internal power problem (See "
Power Lights .")
Hard-drive access light green
Link integrity light (on integrated network adapter) green light — A good connection exists between a
10-Mbps network and the computer.
orange light — A good connection exists between a
100-Mbps network and the computer.
yellow light — A good connection exists between a 1
GB (or 1000-Mbps) network and the computer.
off (no light) — The computer is not detecting a
physical connection to the network.
Activity light (on integrated network adapter) yellow blinking light
Diagnostic lights four lights on the back panel (See " Diagnostic
Lights .")
Standby power light AUX_PWR on the system board